diff --git a/01 b/01
new file mode 100644
index 00000000..bcdf38b1
--- /dev/null
+++ b/01
@@ -0,0 +1,21 @@
+#include <stdio.h>
+double integrate(double (*f)(double), double a, double b)
+{
+    double area = 0;
+    for (double x = a; x < b; x += 0.001)
+    {
+        area += f(x) * 0.001;
+    }
+    return area;
+}
+
+double square(double x)
+{
+    return x * x;
+}
+
+int main(void)
+{
+    printf("integrate(square, 0.0, 2.0) = %f\n", integrate(square, 0.0, 2.0));
+    return 0;
+}
diff --git a/README.md b/README.md
index b61d8b8a..641cfcd4 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,8 @@
 欄位 | 內容
 -----|--------
 學期 | 111 學年度下學期
-學生 |  xxx
-學號末兩碼 | xx
+學生 |  陈文茜
+學號末兩碼 | 39
 教師 | [陳鍾誠](https://www.nqu.edu.tw/educsie/index.php?act=blog&code=list&ids=4)
 學校科系 | [金門大學資訊工程系](https://www.nqu.edu.tw/educsie/index.php)
 課程內容 | https://github.com/ccc111b/sp/